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{% extends "base.html" %}
{% block main %}
<div id="home_content">
<p id="position"></p>
<div class="compass">
<div class="arrow"></div>
<div class="compass-circle"><svg viewBox="0 0 25 25" xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" clip-rule="evenodd"><path class="st0" d="M13,2.6l6.2,7.5L20,9.5l-7.5-9L5,9.5l0.8,0.6L12,2.6v21.9h1C13,24.5,13,2.6,13,2.6z"/></svg></div>
<div class="my-point"></div>
</div>
<!-- <h1 class="header" id="title">GEO</h1> -->
<div id="button_group">
<div id="distance_close">(distance to mosquito)</div>
<button id="store_location" onclick="store_location()"><img src="/static/img/hangout.png" alt="">add hangout</button>
<button id="store_location_mosquito" onclick="store_location_mosquito()"><img src="/static/img/mosquito.png" alt="">add mosquito</button>
<button id="add_text" onclick="add_text()"><img src="/static/img/text.png" alt="">add message</button>
<button id="add_audio" onclick="add_audio()"><img src="/static/img/audio.png" alt=""> add audio</button>
<select id="viewSelector" onchange="changeViewSelect()" >
<option>Choose view</option>
<option value="all">show all entries</option>
<option value="closest">show closest mosquito</option>
<option value="me">my position</option>
</select>
</div>
</div>
<!-- HEADING DIRECTION https://stackoverflow.com/questions/46033649/heading-javascript-geolocation -->
<!-- COMPASS CROSS DEVICE https://stackoverflow.com/questions/16048514/can-i-use-javascript-to-get-the-compass-heading-for-ios-and-android-->
<div class="locations_popup">
{% for location in locations %}
<div class="row" id={{location.id}}>
<div onclick="closeLocation()" class="close">×</div>
<div>{{location.longitude}}, {{location.latitude}}</div>
<div>{{location.message if location.loc_type == "message"}}</div>
<div>
{% if location.loc_type == "audio" %}
<audio id="audio-player" controls="" src="uploads/{{location.audio}}"></audio>
{% endif %}
</div>
</div>
{% endfor %}
</div>
{% endblock main %}
{% block js %}
<script>
var locations;
var zoom_level = 18;
var markerArray = [];
var circleArray = [];
var mosquitoArray = [];
var view="closest";
function assign_data(data) {
locations = data;
}
assign_data({{ data_locations|tojson }});
var map = L.map('map', {
attributionControl:false,
zoomControl:false,
zoom: 2000,
zoomSnap: 0.5,
animate: true,
maxZoom: 19,
minZoom: 10
//dragging: false,
//scrollWheelZoom: false,
}).setView([48.505, 1.09], zoom_level);
L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
maxZoom: 19,
zoom:2,
attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
}).addTo(map);
locations.forEach(function (item, index) {
try {
var icon;
if(item.loc_type=="message"){
icon = L.icon({
iconUrl: '/static/img/text.png',
iconSize: [50, 50],
iconAnchor: [25, 25],
popupAnchor: [-3, -76],
});
}
else if(item.loc_type=="audio"){
icon = L.icon({
iconUrl: '/static/img/audio.png',
iconSize: [50, 50],
iconAnchor: [25, 25],
popupAnchor: [-3, -76],
});
}
else if(item.loc_type=="mosquito"){
icon = L.icon({
iconUrl: '/static/img/mosquito.png',
iconSize: [50, 50],
iconAnchor: [25, 25],
popupAnchor: [-3, -76],
});
}
else if(item.loc_type=="hangout"){
icon = L.icon({
iconUrl: '/static/img/hangout.png',
iconSize: [50, 50],
iconAnchor: [25, 25],
popupAnchor: [-3, -76],
});
}
var circle = L.marker([item.latitude, item.longitude], {icon: icon}).addTo(map).on("click", e => circleClick(e));
circle.id = item.id;
circleArray.push(circle);
markerArray.push(L.marker([item.latitude, item.longitude]));
if(item.loc_type=="mosquito") mosquitoArray.push(L.marker([item.latitude, item.longitude]));
} catch (error) {
console.error(error);
}
});
// var myPositionCircle = L.circle([48.172934, 9.01236], {
// color: 'red',
// stroke:false,
// fillColor: 'red',
// fillOpacity: 0.5,
// radius: 10
// }).addTo(map);
var myIcon = L.icon({
iconUrl: '/static/img/me.png',
iconSize: [50, 50],
iconAnchor: [25, 25],
popupAnchor: [-3, -76],
});
var myPositionCircle = L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
circleArray.push(myPositionCircle);
var x = document.getElementById("position");
let id;
let target;
let options;
//first: latitude, second: longitude
target = {
latitude : 48.172934,
longitude: 9.01236
};
var my_location = {
latitude : 0,
longitude: 0
};
function success(pos) {
const crd = pos.coords;
my_location.longitude = crd.longitude;
my_location.latitude = crd.latitude;
if(view == "closest") updateView()
console.log("updated")
x.innerHTML = "Latitude: " + crd.latitude +
"<br>Longitude: " + crd.longitude +
"<br>Distance to TENT: " + distance(target.longitude, target.latitude, crd.longitude, crd.latitude);
// if we want to clear the watch
// if (target.latitude === crd.latitude && target.longitude === crd.longitude) {
// console.log('Congratulations, you reached the target');
// navigator.geolocation.clearWatch(id);
// }
}
function error(err) {
console.error(`ERROR(${err.code}): ${err.message}`);
console.log("trying again")
// id = navigator.geolocation.watchPosition(success, error, options);
}
options = {
enableHighAccuracy: true,
timeout: 1000,
maximumAge: 1000
};
id = navigator.geolocation.watchPosition(success, error, options);
function distance(lon1, lat1, lon2, lat2) {
var R = 6371; // Radius of the earth in km
var dLat = (lat2-lat1).toRad(); // Javascript functions in radians
var dLon = (lon2-lon1).toRad();
var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(lat1.toRad()) * Math.cos(lat2.toRad()) *
Math.sin(dLon/2) * Math.sin(dLon/2);
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
var d = R * c; // Distance in km
var text;
if(d < 1){
text = Math.round(d * 100) / 100*1000+" m";
}
else{
text = Math.round(d * 100) / 100+" km"
}
return text;
}
/** Converts numeric degrees to radians */
if (typeof(Number.prototype.toRad) === "undefined") {
Number.prototype.toRad = function() {
return this * Math.PI / 180;
}
}
function store_location(){
console.log("storing location");
console.log(my_location)
var xhr = new XMLHttpRequest();
xhr.open("POST", "./addlocation", true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify({
longitude: my_location.longitude,
latitude: my_location.latitude
}));
xhr.onreadystatechange=function(){
if (xhr.readyState==4 && xhr.status==200){
location.reload();
}
}
}
function store_location_mosquito(){
console.log("storing location");
console.log(my_location)
var xhr = new XMLHttpRequest();
xhr.open("POST", "./addlocationmosquito", true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify({
longitude: my_location.longitude,
latitude: my_location.latitude
}));
xhr.onreadystatechange=function(){
if (xhr.readyState==4 && xhr.status==200){
location.reload();
}
}
}
function add_text(){
window.location.href = "addtext?longitude="+ my_location.longitude +"&latitude="+my_location.latitude;
}
function add_audio(){
window.location.href = "addaudio?longitude="+ my_location.longitude +"&latitude="+my_location.latitude;
}
function updateView(){
//update position on map
// map.setView([my_location.latitude, my_location.longitude], zoom_level);
myPositionCircle.setLatLng([my_location.latitude, my_location.longitude]);
if(view == "all"){
var group = new L.featureGroup(circleArray);
map.fitBounds(group.getBounds().pad(0.4));
}
else if(view == "closest"){
var closest = L.GeometryUtil.closestLayer(map, mosquitoArray, myPositionCircle.getLatLng());
// L.polyline([closest.layer.getLatLng(), myPositionCircle.getLatLng()], {
// color: 'black',
// weight: 1,
// }).addTo(map)
document.getElementById("distance_close").innerHTML = "closest mosquito: " + distance(closest.layer.getLatLng().lat,closest.layer.getLatLng().lng,myPositionCircle.getLatLng().lat, myPositionCircle.getLatLng().lng)
var group = new L.featureGroup([closest.layer, myPositionCircle]);
map.fitBounds(group.getBounds().pad(0.4));
}
else if(view == "me"){
map.setView([my_location.latitude, my_location.longitude], zoom_level);
}
else if(view == "free"){
}
}
function changeViewSelect() {
var mylist = document.getElementById("viewSelector");
view = mylist.options[mylist.selectedIndex].value;
updateView();
}
function circleClick(e){
var id = e.target.id
var divsToHide = document.getElementsByClassName("row"); //divsToHide is an array
for(var i = 0; i < divsToHide.length; i++){
divsToHide[i].style.display = "none"; // depending on what you're doing
}
document.getElementById(id).style.display = "block";
}
function closeLocation(){
var divsToHide = document.getElementsByClassName("row"); //divsToHide is an array
for(var i = 0; i < divsToHide.length; i++){
divsToHide[i].style.display = "none"; // depending on what you're doing
}
}
window.addEventListener('resize', function(event) {
updateView()
}, true);
// COMPASS
const compassCircle = document.querySelector(".compass-circle");
const myPoint = document.querySelector(".my-point");
const startBtn = document.querySelector(".start-btn");
var compass;
var pointDegree;
const isIOS =
navigator.userAgent.match(/(iPod|iPhone|iPad)/) &&
navigator.userAgent.match(/AppleWebKit/);
function init() {
// startBtn.addEventListener("click", startCompass);
navigator.geolocation.getCurrentPosition(locationHandler);
if (!isIOS) {
window.addEventListener("deviceorientationabsolute", handler, true);
}
}
function startCompass() {
if (isIOS) {
DeviceOrientationEvent.requestPermission()
.then((response) => {
if (response === "granted") {
window.addEventListener("deviceorientation", handler, true);
} else {
alert("has to be allowed!");
}
})
.catch(() => alert("not supported"));
}
}
function handler(e) {
compass = e.webkitCompassHeading || Math.abs(e.alpha - 360);
compassCircle.style.transform = `translate(-50%, -50%) rotate(${pointDegree-compass}deg)`;
// ±15 degree
// if (
// (pointDegree < Math.abs(compass) &&
// pointDegree + 15 > Math.abs(compass)) ||
// pointDegree > Math.abs(compass + 15) ||
// pointDegree < Math.abs(compass)
// ) {
// myPoint.style.opacity = 0;
// } else if (pointDegree) {
// myPoint.style.opacity = 1;
// }
}
function locationHandler(position) {
const { latitude, longitude } = position.coords;
pointDegree = calcDegreeToPoint(latitude, longitude);
if (pointDegree < 0) {
pointDegree = pointDegree + 360;
}
// compassCircle.style.transform = `translate(-50%, -50%) rotate(${-compass}deg)`;
}
function calcDegreeToPoint(latitude, longitude) {
// Qibla geolocation
var closest = L.GeometryUtil.closestLayer(map, mosquitoArray, myPositionCircle.getLatLng());
console.log(closest);
const point = {
lat: closest.layer.getLatLng().lat,
lng: closest.layer.getLatLng().lng
};
const phiK = (point.lat * Math.PI) / 180.0;
const lambdaK = (point.lng * Math.PI) / 180.0;
const phi = (latitude * Math.PI) / 180.0;
const lambda = (longitude * Math.PI) / 180.0;
const psi =
(180.0 / Math.PI) *
Math.atan2(
Math.sin(lambdaK - lambda),
Math.cos(phi) * Math.tan(phiK) -
Math.sin(phi) * Math.cos(lambdaK - lambda)
);
return Math.round(psi);
}
init();
startCompass();
</script>
{% endblock js %}